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Optimization of Continuous Prestressed Beam for Different Construction Stages

In: Numerical Techniques for Engineering Analysis and Design

Author

Listed:
  • Dragan Radić

    (GraĐevinski Institut)

  • Josip Dvornik

    (GraĐevinski Institut)

  • Vinko Čandrlić

    (GraĐevinski Institut)

  • Đuro Dekanović

    (GraĐevinski Institut)

  • Joško Ožbolt

    (GraĐevinski Institut)

Abstract

Summary This report presents a method of linearized problem optimization for full, limited and partial prestressing. A structure of known dimensions, material properties and construction stages has been analyzed. The structural model is approximated by finite beam elements. The minimization of the prestressing force, reduced for losses, has been achieved iteratively. In each iteration step, me of the possible solutions is determined by linear programming, wich provides for procedure stability. The method for the determination of influence coefficients tendon axis and friction losses. Optimization yields the minimum presstresing force and optimal cable curve for each construction stage, prestressing stage and/or final exploitation stage.

Suggested Citation

  • Dragan Radić & Josip Dvornik & Vinko Čandrlić & Đuro Dekanović & Joško Ožbolt, 1987. "Optimization of Continuous Prestressed Beam for Different Construction Stages," Springer Books, in: G. N. Pande & J. Middleton (ed.), Numerical Techniques for Engineering Analysis and Design, chapter 0, pages 329-336, Springer.
    • Handle: RePEc:spr:sprchp:978-94-009-3653-9_38
    DOI: 10.1007/978-94-009-3653-9_38
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